Corrugating-mandrel.



No. 841,277. PATENTED JAN. 15, 1907.

. B. R. sTAsoH.

GORRUGATING MANDREL.

APPLICATION FILED JULY13.1906.

NETE@ 'STATES rn'rnn'r ernten.

EMIL R. STASCH, OF OORNING, NEW YORK.

CORRUGATING-llliANDREI..I

Specification of Letters Patent.

Patented Jan. 15, 1907.

Application tiled July 13, 1906. Serial No. 326,160.

Corning, in the county of Steuben, State of- New York, have invented certain new and useful Improvements in Corrugating-Mandrels, of which t-he following is a specification, reference being had therein to the accompanying drawings.

This invention relates to a corrugat-ingmandrel, and particularly to a structure adapted for use in connection with the machine shown in my allowed application filed May 5, 1906, Serial No. 315,362.

The invention has for an objectto provide a mandrel formed of sections between which the bearing-rollers are pivotally mounted, each of said sections having a recessed space to receive the rollers and their journals, together with the particular mounting of said rollers in successive vertical planes and descending horizontal planes, so as to increase the capacity of a mandrel of predetermined size.

A further object of the invention is to provide an improved construction and arrangement of seaming-roller mounted upon the mandrel and co perating with the corresponding roller upon the carriage, said ,seaminge roller being provided with a peripheral groove having awall to engage and retam the pipe against any, rotary movement upon the mandrel.

Other' and further objects and advantages of the invention will be hereinafter set forth and the novel features thereof defined by the appended claims.

In the drawings, Figure 1 is a detail plan ofthe mandrel and corrugating-rollers, which travel together. Fig. 2 is a detail elevation of the mandrel. Fig. 3 is an enlarged plan of the seaming-rollers- Fig. 4 is an enlarged section through the roller-bearing in the mandrel- Fig. 5 is a detail section `at right angles to Fig. 4, and Fig. 6 is a side elevation showing the mounting of the mandrel and the coperating corrugating-rollers to travel in fixed relation to each ot-her.

Like numerals of reference indicate. like parts in the several figures of the drawings.

The numeral 1 designates supporting`\ standards or ways, upon which a carriage 2 is slidingly mounted', said ways being provided at their upper ends with the holding-block 3, adapted to sustain the pipe to be corrugated in position, and also provided with a crimping device 4, of any desired character. This carriage is'provided with a stem 5, formed at.

its free end with a shoulder 6, upon which the sections 7 of the mandrel are supported, While the extended end 8 of this stem is provided at its end with the holding-nut 9 for clamping the sections of the mandrel in fixed relation to each other. Each of these sections 7 is provided with a concaved recess l() and a bearing-recess 1], adapted to receive a portion of the roller and its ournal, respectively, when the same are introduced between the sections, and thus to hold the roller against any possible dis lacement, owing to the fact that the j ourna -bearing is inset from the periphery of the sections so that less than one-half of the roller 12 projects from the recess thus formed, while the bearings 13 are firmly clamped between the walls of the sect ions In order that a mandrel of given diameter may accommodate the largest possible number of rollers for effecting the corrugatingwork, these rollers are arranged in parallel longitudinal planes and in successive transverse planes extending from the free end of the roller. It will' thus be seen that a mandrel which owing to its circumference cannot accommodateeight corrugating-rollers in a single transverse plane can be used with 4eight of such rollers by disposing the same in successive transverse planes. The coperating corrugating-rollers 14, carried by the pivoted supports 15 upon the platform 16 of the carriage, are mounted in the same manner as described in my application above referred to and disposed between each of the mandrelrollers, so that both sets of rollers travel in relatively fixed relation to each other during the corrugating'action, and the preliminary bending, as well as the final finishing-work, isV accomplished by the rollers 12 upon the mandrel at each side of the rollers 14 upon the carriage-frame.

A seaming-roller 17, provided 'with journals 18, is mounted between two of the sections of the mandrel in the same manner as the corrugating-rollers and is provided with a peripheral goroove 19, againstwhich the seam of the pipe-body is adapted to abut to prevent a rotary or slipping movement of the pipe during the seaming action by the c0- operating roller 21, carried by the frame 22, mounted on the carriage. These seaming- IOO AIS

V rollers 'are'in fixed relation to each other and in the movement of the pipe through the' machine eiectually close the seam and prevent a rotaryslippin of the pipe. -f

5 In the operation o the invention the tube or pipel to be corrugated Yis inserted in the machine and held at one end thereof by the crimping device or other means, While the carriage supporting both the mandrel and 1o coperating rollers travels longitudinally for \the length ofthe tube, and the portion of the su erposed sections each previdedwith a ro, erand journaling-recess, and `means for clamplng sald sectlonstogether.

2. A mandrel composed "cfa series ofi su erposed sections each provided With a A. ro ler and journalingrecess, and `means for clamping said sections together, said recess (leiliig inset from the periphery oft/the Vmanre. -1 v y carriage 1n planes interme rollers mounted t 3. A mandrel plrovided:withcorrugatirg-v 1 erein in parallel longitu nal planes and successive transverse planes, and coperating rollersfsu orted upon the dlate of the longitudinal -planes of the mandrel-rollers and movable With said mandrel.

4. A- :corrugating mandrel composed of sections each recessed to receive a roller, said rollers bei-n disposed successively in parallel longitudinal planes and different transverse planes.

5. A corrugating-machine having a mandrel provided -With rollers disposed'in series in different transverse planes, in eombination with a carnage traveling Wlth said man drel and carrying eoperating rollers all disposed in a single transverse plane in planes intermediate o mandrel-rollers. l -In testimony whereof l affix my signature in presende off twowitnesses'..

the longitudinal planes ofthe l ,EMIL Rj'sTAscH. l'

' Witnesses: f

FRANCES C. VVILLIMS', ELISABETH WILLIAMS. 

